Radiator.



T. UFEELDER.

EADEA'GE. Hummm-mm2 MAY 1v, 1912 Mw o w L MW ff w/ w MQ@ .@@QQQQGQ @www W /W j@ Ww @a UNITED STATES PATENT OFFICE.

THOMAS COFFELDER, F DETROIT, MICHIGAN.

Patented Apr. 7., 1914.

Application inea Mayu, 1912. serial No. 698,016.

RADIATOR.

1,092,242. Specification of Letters Patent.

T0 ZZ 'zlfl'o/n 'it may concern i.

Be it known that l, THOMAS COFFELDER, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Radiators, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in radiators particularly adapted for use upon motor vehicles. and its object. is to provide a construction in which a high cooling efficiency is secured by deflecting and breaking up the air currents as they pass through the radiator, and which presents the appearance of a bank of tubes of rectangular form in cross section arranged in horizontal and transverse rows.

A further object is to provide a construction 'which is cheap to manufacture and has other new and useful features. To these ends the invention consists in the matters hereinafter set forth and more particularly pointed out in the claims reference being had to the accompanying drawing, in whi'ch- Figure l is a front elevation of a device embodying the invention with parts broken away to show the construction; Fig. 2 is a detail showing a vertical section through a portion of the device; Fig. 3 is a detail showing the same in horizont-al section; Fig. 4 is a detail of a tin ribbon; and Fig. 5 is a perspective detail showing a modified construction. l

In the drawing 1 represents a top tank and 2 a bottom tank of a radiator construction adapted for use upon motor vehicles, and these two tanks are connected by a series of vertically extending arallel tubes 3, each formed in any suitab e manner, as from a sheet of thin metal folded upon itself with its edges soldered together, and with a narrow. space between the side walls, thus forming a broad flat tube of a width equal to the desired Width of the radiator having a Very thin water space. These tubes are connected at their ends in any desired manner to the tanks and are spaced apart by strips or ribbons 4 of thin sheet metal which ribbons are equal in width to the desired distance between adjacent tubes. These ribbons forni radiating members or fins on the tubes to provide an extended radiating surface therefor and assist in cooling the water as it passes through the tubes from the top tank to the bottom tank. The spacing or radiating fins between two adjacent tubes are formed by a single strip or ribbon which is bent into a zigzag form, extending back and forth across the tubes from the front to the rear edges thereof and forming air passages between the runs or straight ortions which passages open through the ront and rear sides of the radiator.

Each ribbon is formed with 'groups of openings 5, as shown in Fig.4, the rlbbon being bent between each' group and folded backward to form the next run of the ribbon which extends across the walls'of the tubes and is secured thereto between rtwo adjacent tubes in any suitable manner, as by soldering. The bends 6 are preferably so formed that when the core of the radiator is made up, these bends will correspond in width to the width of the tubes and thus give to the front of the radiator the appearance of be ing formed of rectangular tubes of uniform size and thickness. The openings 5 permit the air entering the air passages at the forward side of the radiator to pass therethrough, the air currents being deflected and vbrok en up as they pass through these openings 5 from the front to the rear side of the radiator. v

In the modified construction shown in Fig.

v5, the radiating member is formed by a contlnuous narrow sheet metal strip or ribbon 7 which issoldered or otherwise secured to the face of one wall of adjacent tubes 3 across said faceforming a run,8, thencei extended in a horizontal or cross run 9 tthe opposedface of the other tube and across "the face thereof in a downwardly inclinedfrunl 10 `to connect in a like cross run 9`with another run 8 of theribbon which is secured in a like manner belowthe ft-:sts jT-herhbon thus extends, in a zig-zag form backend forth from front to rear of the radiator and is soldered alternately to one and then the other of the adjacent tube walls with its edge against the wall and projectin laterally therefrom'to provide an exten ed ra-` diating surface. The portions of the ribbon forming the cross 'runs 9 are prcfcral'ily `turned to present the side of the ribbon io the front of the radiator and the ribbon'is preferably of such a width that these por tions 9 extending across between the tubes,

will correspond inv width to the width of the forward edges of the tubes and thus give the desired appearance to the front of the radiator.

A very cheap and simple construction is' secured by forming the radiating members of continuous strips or ribbons which are veasily bent in'to the desired form and currents and give an increased cooling effect,

. the runs forming bafes to arrest the passage of air through the radiator.

Obvious1y,changes may be made in the construction and arrangement of parts without departing from the spirit of' my invenf tion and I do not wish to limit myself to the particular form or construction shown.

Having thus fully described my invention what I claim isz- 1. In a radiator, the combination with spaced walls forming water passages and air spaces between the water passages open at each side for the passageof air therethrough, of a tortuous stri -in each air space upon said walls exten ing across the same from one open side to the other of said space and positioned therein with its bends .curved in the direction of the passage of air through said air space to form a bafiie therein. y 2. In a radiator, the combination with spaced walls-forming Water passages and air spaces between said water passages opening through the faces of said radiatorfor the passage of air therethrough, of a continuous metal ribbon in each air space upon the walls thereof extending across the same from face to face of the radiator throughout the length of said walls and formed with a plurality of bends and portions between the bends extending i'n the direction of the passage of air through said air space;

3. In a radiatorthe"combination withspaced vertical. walls formin water passages, of radiating means on sald walls comprising metal strips each formed with a plurality of diagonal portions extending across said walls in the direction of the passage of air through said radiator from front to rear thereof, and each strip extending from top to bottom of said walls.

4. In a radiator, a core formed with water passages and air spaces gbetween the water passages extending through the core for the passage of air therethrough, and a single continuous metal strip in each air space secured at its edge t0 a wall thereof and bent into zig-zag form lwith its inclined portions inclined to the direction of the passage of air through said air spaces and forming baffling means' for the air.

5. In a-radiator, a. core comprising walls forming water passages extending from top to bottom of the core and air spaces between the Water passages Opening through the front and rear of said core for the passage of air'therethrough, and radiating means within the air spaces comprising a continuous metal strip in each air space secured to said walls at its edges and formed of oppositely inclined portions connected by bends and extending across the walls from front to rear of said'core and inclined to the direction of the spaces.

6. In a radiator, acore formedl with Awater passages and air spaces between the passages extending through the core and from top to'bottom thereof for the passage of air therethrough, a metal strip within each air space extending from top to bottom thereof and across said space with its edges engaging the walls of the adjacent water passages and provided with openings for the passage of air, said strips each having a plurality of bends curved in the direction of the pas- 'sa cre of air through the air spaces.

In a radiator, the combination with spaced vertical walls forming water passages and spaces between said water passages for the passage of air through the structure from front to rear thereof, of a continuous metal ribbon in each air space extending from the top to bottom thereof and spanning said space and secured at its passage of air through'the edges to the walls, said strip being formed with a plurality of bends and inclined portions extending across the walls from front to rear thereof in the direction of the passage of air through said air space, said strip being also formed Vwith openings in its inclined portions to permit the air to pass through the air space.

- In testimony whereof I affix my signature in presence of two witnesses.

THOMAS C'OFFELDER.

Witnesses:

- LEWIS E. FLANDERS,

ANNA M. Donn. 

